#6388F7#6388F7

#6388F7 is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.3% C 0.170 H 267.7°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#6388F7
RGB	rgb(99, 136, 247)
HSL	hsl(225, 90%, 68%)
HSV	hsv(225, 60%, 97%)
CMYK	cmyk(59.9%, 44.9%, 0%, 3.1%)
CIE-LAB	lab(58.95, 20.12, -59.55)
CIE-LCH	lch(58.95, 62.86, 288.67°)
OKLab	oklab(65.33% -0.0069 -0.17)
OKLCH	oklch(65.33% 0.17 267.7)
XYZ	xyz(30.7326, 26.9738, 91.5646)
Luminance	0.2698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6388F7 #F7D263

analogous

#63D2F7 #6388F7 #8863F7

triadic

#6388F7 #F76388 #88F763

tetradic

#6388F7 #F763D2 #F7D263 #63F788

square

#6388F7 #F763D2 #F7D263 #63F788

split-complementary

#6388F7 #F78863 #D2F763

monochromatic

#0B3DD5 #295CF4 #6388F7 #9DB4FA #D7E1FD

Accessibility & contrast

On white

3.28

#6388F7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#6388F7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388F7

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6388F7	#FFFFFF	#000000	##000000
##6388F7	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5495FB

Deuteranopia (green-blind)

#3C88F5

Tritanopia (blue-blind)

#00A1B3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #6388f7;
/* rgb */ color: rgb(99, 136, 247);
/* oklch */ color: oklch(65.3% 0.170 267.7);

Tailwind

colors: {
  custom: {
    50: '#9baafa',
    500: '#6388f7',
    950: '#000000',
  },
}

SCSS

$custom: #6388f7;
$custom-light: #9baafa;
$custom-dark: #000000;

JSON

{
  "hex": "#6388f7",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 247
  },
  "hsl": {
    "h": 225,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.6533,
    "c": 0.17011,
    "h": 267.7
  },
  "luminance": 0.26976
}

Semantic roles & 50–950 ramp

primary

#6388F7

secondary

#F2E6C4

accent

#AC00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #6388F7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →